/*
 * Copyright (c) 2022-2022 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LOS_PID_CONTAINER_H
#define _LOS_PID_CONTAINER_H

#include "los_container_bundle.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

#ifndef PID_CONTAINER_ROOT_LEVEL
#define PID_CONTAINER_ROOT_LEVEL 0
#endif

#ifndef FINDGLOBALPID_ERR
#define FINDGLOBALPID_ERR -1
#endif

#define VPID_STATUS_USED 1
#define VPID_STATUS_UNUSED 0

#ifdef LOSCFG_PID_CONTAINER

extern PidContainer g_rootPidContainer;
extern UINT32 g_currentPidContainerNum;

VOID InitPidContainer(PidContainer *pidContainer);

INT32 LoopAllocVpid(LosProcessCB *childProcessCB);

VOID ExitPidContainer(LosProcessCB *processCB);

PidContainer *HandlePidContainer(unsigned long flags, PidContainer *pidContainer);

INT32 PlaceProcessIntoPidContainer(LosProcessCB *childProcessCB);

VOID FreePidContainer(PidContainer *pidContainer);

INT32 GetCurrPidLevel(VOID);

INT32 GetVpid(VOID);

INT32 GetVppid(VOID);

INT32 GetGlobalPidByCurrPid(UINT32 pid);

INT32 GetGloabalPidByContainerAndPcb(UINT32 pid);

INT32 IsInSamePidContainer(LosProcessCB *processCB);

INT32 GetCurrPidByGlobalPid(UINT32 globalPid);

INT32 ReplacePidContainerInBundle(struct ContainerBundle* bundle, struct PidContainer *targetPidContainer);

STATIC INLINE VOID GetPidContainer(PidContainer *pidContainer)
{
    atomic_inc(&pidContainer->refCount);
}

STATIC INLINE VOID DerefPidContainer(PidContainer *pidContainer)
{
    if (atomic_dec_and_test(&pidContainer->refCount)) {
        FreePidContainer(pidContainer);
    }
}

#endif
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* _LOS_PID_CONTAINER_H */


